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January 26-27 Storm Threat - II


Baroclinic Zone

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Yeah, we discussed that northern energy acting as a kicker. The 12z NAM does not look to different in track than the 00z GFS, just a bit slower. They both come off HAT with 500 low.

It's very similar to the 0z GFS just a smidge stronger and slower. It would probably end up being a little more robust but it's tough to tell as it may also slip further ENE at 90.

Either way, instead of being WAY on the amped side of the solutions it seems to be right with the others. Maybe that will change in subsequent runs today as we see it emerge off the coast in later panels.

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It's very similar to the 0z GFS just a smidge stronger and slower. It would probably end up being a little more robust but it's tough to tell as it may also slip further ENE at 90.

Either way, instead of being WAY on the amped side of the solutions it seems to be right with the others. Maybe that will change in subsequent runs today as we see it emerge off the coast in later panels.

Save all the runs for the sake of history!!

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That was the EURO though, the 06 gfs has thrown a damper on this whole event, storm cancel.lol

ehhh ......

Its a lot of snow N and W of 495 on the euro but there is def some sleet that gets in there...S of the pike near Kevin its a paint peeler for quite a bit of the storm.

I have very little confidence in ptype for this storm. I do think interior will be frozen, but whether that is more sleet/ZR or mostly snow....I have no idea. Closer to the coast its even more difficult.

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1/13-15/1999 (which produced over a foot of ocean effect snow in parts of eastern MA with temps around 10F, and then had precip change to sleet, ZR and finally rain) is another good example of this phenomenon.

Some people are upset about so much deep cold and ptype issues following 2 days later. While the upset is understandable, if you remember these deep cold plunges, they are often followed by systems like this. 2/4/61 is the classic example. And hopefully that is what helps this event. Antecedent cold was so intense that it only changed in Atlantic City and a bit further up the NJ shore. But it was close to changing in many places.

Another example is the great Chicago blizzard of 1/2/99. Obviously we get a 50F rainstorm. 2 days earlier, temps struggled past 10F for highs in Boston.

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I see a lot of people arguing about when this storm will start for most of us and it's pretty rediculous.. We have to keep in mind this is a New England thread.. So when someone like me in extreme southwest New England says its a Wednesday storm I am right.. And when someone from boston East Central New England says Thursday they are right... I guess the best way to put this is the affects from this possible storm will start to be felt in New England during the day on Wednesday.

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Look I think most of us think the Euro is the way to go in this kind of setup. Buuuuut, with a trend in all of the 6z data, the fear is that those runs latched onto something in the data that was not available to the Euro when it ran. That's my worry. We'll know it all in about 2 hours.

well the NAM trended back towards the 00z

the RGEM at 48 looks even deeper than the NAM

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Nice, Upton. Scary but good thoughts.

.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/...

GFS HAS SLOWED DOWN CONSIDERABLY COMPARED TO LAST NIGHTS RUN AND

IS NOW EVEN SLOWER THAN THE EC. THERE IS GOOD AGREEMENT ON THE

TRACK OF THE STORM...OVER OR JUST INSIDE THE 40N 70W

BENCHMARK...BUT THERE ARE STILL UNCERTAINTY WITH TIMING AND

INTENSITY.

TRACK OF THE LOW WILL HAVE IMPACTS ON THE PRECIPITATION TYPES AND

AMOUNTS ACROSS THE REGION. WITH A ONSHORE FLOW TUESDAY NIGHT INTO

WEDNESDAY WARM AIR WILL BE FLOWING IN ALOFT...AND ALSO AT THE

SURFACE. TOUGH CALL AS TO HOW FAR INLAND THE LOWER LEVELS WARM.

POTENTIAL FOR SOME RAIN AND FREEZING RAIN ALONG THE COAST...AND

SNOW FARTHER INLAND. OR RAIN MAY BE MORE WIDESPREAD FARTHER

WEST...POSSIBLY TO NYC AND WESTERN CONNECTICUT...WITH FREEZING

RAIN AND SNOW WEST OF THERE. DETAILS STILL FUZZY AND NOW THE 06Z

GFS JUST CAME IN FARTHER OFFSHORE AND WOULD COMPLETELY MISS US.

STORM MOVES OUT WEDNESDAY NIGHT INTO THURSDAY WITH COLDER AIR

RETURNING AND PRECIPITATION LIKELY GOING BACK TO SNOW.

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Watching the gfs now is ok but we can not trust the model until Monday/Tuesday we all know every storm this year on the gfs comes way west within 24-36 hours! I would go with the euro been most consistant. expect a high impact storm sometime between Wednesday-Thursday for all of New England

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You'll do well Ray. :) You are in a great snow spot. So maybe you get some sleet, but regardless it's money in the bank that you get a nice increase in snow pack. Once again here it a question of snow or fringe. I kinda think it trends nw enough for at least another moderate hit here.

I can't imagine that the EURO had much in the way of sleet up here, but that is still disconcerning......this has V-Day like potential, I guess.

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